Meanwhile, to those below in the plain, "the glory of the Lord" on the summit above them, was like devouring fire on the top of the mount. They had but to lift their eyes thither, and they saw his wonderful glory—showing like a huge fire—on the spot from which he had spoken to them (Exodus 20:18).
This manifestation continued certainly for the first six days; whether it lasted longer or not is open to question.